Heat-concentrating ring for gas or vapor stoves or ranges.



L. W. SWAFFORD. HEAT CONCENTRATING RING FOR GAS 0R VAPOR STOVE 8 0RRANGES. APPLICATION FILED EiEPT. 10, 1909. I

983,41 3 PatentedjFeb. 7, 1911. [0 1 I,

I [HUM h h| ,0 1|! /3 M wrm m MK m J /HQ, g 0 0 0 9 (p p Q m 11 I w LEVIW. SWAFFORD, O'F VICKSBURG, MISSISSIPPI.

I-IEAT-CONCENTRATING RING FOR.GAS OR VAPOR STOVES 0R RANGES.

Specification of Letters Patent.

Patented Feb. '7 1911.

Application filed September 10, 1909. Serial No. 517,087.-

To all whom it may concern:

Be it known that I, LEVI IV. SwArronD, of Vicksburg, in the county ofVarren and in the State of Mississippi, have invented a ;certain new andl'iseiful Improvement in IIeat-Concentratmg Rings for Gas or VaporStoves or Ranges, and do hereby declare that the following is a full,clear, and exact description thereof.

. The object of my invention is to provide an attachment or appliancefor use in gas or vapor stoves form the dopble function of concentratingthe heat upon the vessel on the stove or;

range and while admitting of a free sup-' ply of air to supportcombustion W111 protect the flame-from currents of air, so that it willbe entirely practicable to cook in an 2 open and well ventilated room,-and more;

particularly my object'is to provide an appliance of this descriptionhaving capaclty for changing the size or dimensions vert cally as wellas horizontally and with the object stated in view, my inventionconsists in the device or appliance constructed substantially ashereinafter described and set forth.

In the accompanying drawings; Figure 1 is a vertical section of a ringembodying my invention, and Fig. 2 a perspective view thereof viewedfrom the under side.

I illustrate 1n' the drawing the preferred embodiment of my invention,in which -em-' bodiment it consists of two ring-form sec tions ormembers 10 and preferably formed of sheet metal, each of which is splitor cut at one point so that its a diameter may be enlarged ordiminished, f

and one section or member being within the other. and one section ormember having acirumferentially extending series of hori zontallyelongated openings 01' slots 11- and the other section a similar seriesof vertially elongated openings or slots 13 through which at intervalsare passed clamping bolts 0r nuts 14 which serve to clamp or hold the orranges which will per -i 11, respectively,

' two sections in desired adjustment, both vertically as well asdiametrically. "Preferably, the ends of the inner section or member areoverlapped and a securing bolt passed through alining slot-s or openingstherein to fix or hold the same and thus the whole ring structure at adesired adjustment of diameter,- The; slots or openings in the ringsection besides forming a part of the adjustable connection between gthe sections, provide for the supply of air i sections the effectualarea of the openings l may be varied. Preferably, besides the verticallyelongated openings 13, the ring sec- 'tion which has such openings, isprovided l with additional air supply openings 15. IVhen applied to thestove, my device encircles the burner 16, being placed around the samewithin the open or filigree work 18 forming the top of the stove,contiguous to the burner, so that it completely surrounds the flame.

My ring, notwithstanding its great capacsive inconstruction andperfectly performs .the bottom of the cooking utensil and conduces to asaving in gas, time and labor. Having thus described my invention, whatI claim is: 7

An appliance for gas or vapor stoves adapted to fit around the burnerandto exutensil comprising two ring-form sections LEVI W. SWAFFORD.Witnesses G. B. McGorm-znn, T. G. Srnnn.

the fore goin g I i i l l 1 l l i and by the vertical adjustment of thetwo the function of concentrating the heat to tend .upward therefromtoward the cooking or members adjustable in diameter and ad ity foradjustment, is simple and inexpen-

